Prior To Operation; How To Use - Hitachi DS 7DF Bedienungsanleitung

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Table 1 Charging time (At 20°C)
Charger
Battery
EB712S
FEB7S
The battery charging time becomes longer when a
temperature is low or the voltage of the power source
is too low.
When the pilot lamp does not go off even if more than
two hours have elapsed after starting of the charging,
stop the charging and contact your HITACHI
AUTHORIZED SERVICE CENTER.
CAUTION
If the battery is heated due to direct sunlight, etc.,
just after operation, the charger pilot lamp may
not light up. At that time, cool the battery first,
then start charging.
3. Disconnect the charger power cord from the
receptacle.
4. Hold the charger tight and pull out the battery.
Regarding electric discharge in case of new
batteries, etc.
As the internal chemical substance of new batteries
and batteries that have not been used for an extended
period is not activated, the electric discharge might
be low when using them the first and second time.
This is a temporary phenomenon, and normal time
required for recharging will be restored by recharging
the batteries 2-3 times.
How to make the batteries perform longer.
(1) Recharge the batteries before they become completely
exhausted.
When you feel that the power of the tool becomes
weaker, stop using the tool and recharge its battery.
If you continue to use the tool and exhaust the electric
current, the battery may be damaged and its life will
become shorter.
(2) Avoid recharging at high temperatures.
A rechargeable battery will be hot immediately after
use. If such a battery is recharged immediately after
use, its internal chemical substance will deteriorate,
and the battery life will be shortened. Leave the battery
and recharge it after it has cooled for a while.

PRIOR TO OPERATION

1. Setting up and checking the work environment
Check if the work environment is suitable by following
the precautions.
Work
Wood
Drilling Steel
Aluminum
Machine screw
Driving
Wood screw
6
UC7SB / UC7SD
Approx. 50 min.
Approx. 60 min.
Table 2
Use for drilling purpose.
Use the bit or socket matching the screw diameter.
Use after drilling a pilot hole.

HOW TO USE

1. Confirm the clutch dial position. (See Fig. 4)
The tighthening torque of this unit can be adjusted
according to the clutch dial position, at which the
clutch dial is set.
(1) When using this unit as a screwdriver, line up the one
of the numbers "1, 3, 5 ... 22" on the clutch dial, or
the white dots with the triangle mark on the outer
body.
(2) When using this unit as a drill, align the clutch dial
drill mark " " with the triangle mark on the outer
body.
CAUTION
The clutch dial cannot be set between the numbers
"1, 3, 5 ... 22" or the white dots.
Do not use with the clutch dial numeral between "22"
and the white line at the middle of the drill mark. Doing
so may cause damage. (See Fig. 5)
2. Tightening torque adjustment
(1) Tightening torque
Tightening torque should correspond in its intensity
to the screw diameter. When too strong torque is used,
the screw head may be broken or be damaged. Be
sure to adjust the clutch dial position according to
the screw diameter.
(2) Tightening torque indication
The tightening torque differs depending on the type
of screw and the material being tightened.
The unit indicates the tightening torque with the
numbers "1, 3, 5 ... 22" on the cluch dial, and the
white dots. The tightening torque at position "1" is
the weakest and the torque is strongest at the highest
number. (See Fig. 4)
(3) Adjusting the tightening torque
Rotate the clutch dial and align the numbers "1, 3, 5
... 22" on the clutch dial, or the white dots with the
triangle mark on the outer body. Adjust the clutch dial
in the weak or the strong torque direction according
to the torque you need.
CAUTION
The motor rotation may be locked to cease while the
unit is used as a drill. While operating the driver drill,
take care not to lock the motor.
Too long hammering may cause the screw broken due
to excessive tightening force.
3. The scope and suggestions for uses
The usable scope for various types of work based on
the mechanical structure of this unit is shown in Table
2.
Suggestions